shopping_list = []
shopping_list.append("咖啡豆")
shopping_list.append("磨豆机")
shopping_list.append("冷萃壶")
print(shopping_list)
print(len(shopping_list))
shopping_list.remove("磨豆机")
print(shopping_list)
price = [70, 200, 90]
max_price = max(price)
min_price = min(price)
print(max_price)
print(min_price)
sorted_price = sorted(price)
print(sorted_price)
